tonight on "world news" -- hot planet. the world is heating up. and for the first time, a u.s. government-backed report finds that searing heat shows epic storms to man-made global warming. pilot meltdown, the jetblue pilot who terrified passengers with his tirade. today, we're told that too little sleep was to blame. behind the scenes. an extraordinary abc news advance. the drama, the healing at the hospital. and dr. mehmet oz, here to tell us how to be the smartest patient you can be. and small wonders. the new trend in teeny apartments. the size of two parking spaces. fold-away stoves? good evening.

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we begin with a new report and a major alert about the speed of climate change on this planet. hundreds of scientists from around the globe saying today there is evidence that global warming is accelerating. sea levels rising, greenhouse gases mounting, glaciers melting. and for the first time, a government-backed report links the recent wild weather to man-made causes. so is this a kind of tipping point? abc's weather editor sam champion begins by breaking it down for us. >> reporter: the extreme weather of 2011. >> oh, gosh that is a monster tornado. >> reporter: the worst drought in a decade. even the recent head line of the hottest 12 months we've ever lived through, all a global concern. areas of world are getting hotter and drier. flood zones getting pummeled. extreme weather becoming the rule, not the exception. and according to many scientists, global warming is a cause.

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>> what we know really about global warming is it increases the likelihood of more extreme events. >> reporter: today, hundreds of scientists from 48 countries released their annual state of the climate report, which shows the trend toward a rapidly warming planet has been accelerating. the study examined headlines, like rising temperatures both on land and in our ocean. and examined disappearing sea ice. 2011 showed the second smallest area of ice on record. also noting glaciers around the world continue to shrink. greenland has one of the largest ice bodies in the world. and pictures now show that greenland's glaciers are melting 30 times faster than a decade ago. over the last century, sea levels have risen about ten inches. but by 2050, scientists predict the levels will increase another foot. if that holds true, parts of cities like miami and new orleans will be under water. for the first time in its

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history, this study says 2011 weather extremes are connected to man-made global warming. >> this study does not make predictions for the future, but it begs the question, have we reached the tipping point? scientists tell us not yet. >> this may not be a tipping point this year or next year. but the odds keep growing. and it's one of those problems where the sooner you deal with it, the easier it is. >> and i want to turn to sam champion right now. >> sam, how do they link this to man-made causes for the first time? >> in looking to the report, diane, the one thing they won't say is that that particular storm or flood event is caused by global warming. but what they do say, all the greenhouse gases is on the rise. in the largest levels. carbon dioxide, methane and nitrous oxide. they also said they were not able to detect natural rises in greenhouse gases. >> and so these are man-made

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gases and not natural? >> for the first time. that's what we've heard. >> we've heard this is not yet the tipping point. so still time to do something? >> well, if you want my opinion, diane, what i would say, now is the time we start limiting man-made greenhouse gases if we're starting to see that that is exactly what other studies are showing. >> this will start a new conversation. big new report today. thanks, sam. now a return to something else gaining speed. "your voice, your vote." 119 days until the presidential race. and the new abc news/"washington post" poll shows two candidates are in a dead heat, tied at 47% each. and today, the obama campaign turned up the heat on something every american family recognizes. tax returns. how much do american voters really want to know about a candidate's tax returns? here's abc's jon karl. >> reporter: mitt romney has been under fire from democrats over his personal finances, but today, he said he doesn't really know much about his own

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investments. >> my investments have been held by a blind trust. have been managed by a trustee. i don't manage them. deercht know where they are. >> reporter: the information romney has released about his $250 million personal fortune has raised more questions than answers, showing he had a swiss bank account, investments in the cayman islands and a corporation in bermuda. speaking to a latino audience today, vice president biden hammered romney for not releasing more financial information. >> he wants you to show your papers, but he won't show us his. it's kind of fascinating. >> reporter: and his father, george romney, ran for president in 1968, he released 12 years of tax returns. saying a single return could be, quote, be a fluke, done for show." earlier this year, mitt romney was challenged to do the same thing. >> do you follow your father's example? >> maybe. >> reporter: he didn't. instead, releasing just this 2010 return and an estimate of taxes for 2011, telling diane

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sawyer that's plenty. >> we've released all the information required by law and then some. >> reporter: but we've looked back and found every presidential nominee in both parties over the last three decades has released more tax returns. romney says he'll release his 2011 return when he finishes it, but that's it. it's not that he doesn't have more returns handy. when he was under consideration to be john mccain's running mate four years ago, he gave mccain 23 years of tax returns, noting at the time, quote, i'm a bit of a packrat so i had them all. the romney campaign calls all of the attention to his personal finances a distraction, an effort they say from the obama campaign, to divert attention from the president's failed economic record. diane. >> much in "your voice, your vote." jon karl weighing in tonight. thank you, jon. overseas now to london where the countdown to the olympics is under way. it begins roughly two weeks from tonight.

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and the city of london is ramping up security against a terror attack paper flurry of arrests, even missiles placed on rooftops. today, a ruling that anything is fair game. abc's nick schifrin explains. >> reporter: london is in lockdown. and that means some residents will have to sleep under these. those are surface-to-air missiles designed to stop a 9/11 style attack, and they're on brian whelan's roof. >> this is the tower that sticks out right above my apartment. as you can see there's a high velocity missile battery on the roof. >> reporter: whelan says they make him feel less safe. >> it makes me feel like a target. it makes me worry about what goes wrong. >> reporter: but today a judge rejected those worries and said the military needs those missiles there, and on five other residential sites to protect the games. in all $2 billion worth of security is being rolled out. air force jets. tens of thousands of additional police to help protect one of the world's largest transit systems. even britain's largest warship will be deployed inside the city. the british military will deploy

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more troops to protect the olympics, 13,000, than it deploys to afghanistan, it's the largest military presence in london since world war ii. in the last week, with security so tight, london police made six terror-related arrests. it turns out, none had a direct link to the games. police, and the people of london, are on high alert. and with only 17 days to go, the security and the tension here, will only increase. nick schifrin, abc news, london. and now, we turn to a big event from abc news tonight. the real life series "new york med." we are there. with doctors and nurses on the front lines, every story teaching us something about ourselves, including the resident who goes into the hospital chapel to sing. ♪ mama mary comes to me >> and tonight on "new york med" dr. mehmet oz takes action knowing that it is not only the body that heals, but the heart.

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dr. oz joins us in a moment but first up, abc's sharyn alfonsi. >> reporter: it is a side of dr. oz few ever see. >> can someone give me a knife please? >> reporter: oz, a world-class heart surgeon, still performs surgeries regularly at new york presbyterian hospital. >> how you doing? >> reporter: on this day, oz is getting ready to repair a valve in postal worker jack abrhamson's heart. >> it's leaking so badly that it caused heart failure which worries me. >> reporter: he's optimistic about the surgery. but something else gives him pause. >> are you here by yourself? >> yes. >> why? >> reporter: oz presses abrhamson, eventually, calling the man's ex-wife phyllis. >> hi, mehmet oz, how are you? >> i'm fine. >> well, thank you very much for making time. i hear all about you and now you can defend yourself. >> reporter: he encourages her to be there for her ex when the

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big day comes, she is. >> i have made the mistake of operating on people who have no one who loved them so now i insist that my patients identify one person they love and loves them back because if you don't have a reason for your heart to keep beating, it won't. >> reporter: later in the surgical suite -- >> you can't afford to waste time in heart surgery. >> reporter: -- oz repairs abrhamson's heart successfully. and while he's treated like a hollywood star in the hospital corridors, oz insists it all actually makes him a better doctor. >> when people come to me they don't ask me for autographs. they ask me for advice. they want to know if i have an insight that can change their life for the better. now they're more comfortable asking me those questions because i'm in their living room every day. >> reporter: that becomes clear right away. as jack abrhamson recovers, a question from phyllis, the ex-wife oz insisted on calling. >> well, this one is a real personal one. when can he have sex again? >> you haven't had sex yet? what the heck have you been doing? >> reporter: the famous physician attending to all

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matters of the heart. sharyn alfonsi, abc news, new york. >> and dr. mehmet oz, matchmaker here with us. how's he doing? >> he's in great -- actually, i was with mr. abramson yesterday and his ex-wife who asked that question. about whether he could have sex. >> love that moment. you know it's spiritually wonderful to have people you love around you, but if there's physical basis, physical proof, that it makes that such of a difference? >> there's a lots of evidence to be isolated what you face in the modern world. this is in fact every patient i operate on. find someone else that they know loves them, it reminds them who we are. >> this is physical, this is chemical? it changes you chemically? >> when you're isolated, your testosterone levels change, your cortisone levels go through the roof. the changes. changes your immune system. there are many people who feel

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alone. i don't want you melting into the bed, dissolving as you lose the energy and what life really represents. you have people who want to be there. that's why the professionals are a wonderful place to be. but you have to be assertive and find the people who care for you. once the control of your destiny is yours, think about this, once you control your body, you can control the world outside of you. >> "new york med" is coming up tonight. what a way to go inside a hospital and see the doctors and nurses on the front line, on abc, 10:00 eastern time. still ahead right here on "world news" -- the pilot's whose breakdown at 30,000 feet made headlines. >> i'm so distraught. oh, we got -- we got -- israel, we got iraq. >> tonight, a court rules sleep deprivation is to blame. after college, i moved back in with my parents. i was worried about 'em, you know? i mean for instance my mom went to bed tonight before making my dinner.

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which is fine, i mean i, i know how to make dinner. it just starts to make you wonder. is this what happens when you age? my friends used to say i was the lucky one. i had the fun parents. where's the fun now? night guys! [ sighs ] ♪ [ male announcer ] venza. from toyota. [ slap! ] [ slap! slap! slap! slap! ] [ male announcer ] your favorite foods fighting you? fight back fast with tums. calcium rich tums goes to work in seconds. nothing works faster. ♪ tum tum tum tum tums mid grade dark roast forest fresh full tank brain freeze cake donettes rolling hot dogs bag of ice anti-freeze wash and dry diesel self-serve fix a flat jumper cables 5% cashback signup for 5% cashback at gas stations through september. it pays to discover. i've been fortunate to win on golf's biggest stages. but when joint pain and stiffness from psoriatic arthritis hit, even the smallest things became difficult.

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i finally understood what serious joint pain is like. i talked to my rheumatologist and he prescribed enbrel. enbrel can help relieve pain, stiffness, and stop joint damage. because enbrel, etanercept, suppresses your immune system, it may lower your ability to fight infections. serious, sometimes fatal events including infections, tuberculosis, lymphoma, other cancers, and nervous system and blood disorders have occurred. before starting enbrel, your doctor should test you for tuberculosis and discuss whether you've been to a region where certain fungal infections are common. don't start enbrel if you have an infection like the flu. tell your doctor if you're prone to infections, have cuts or sores, have had hepatitis b, have been treated for heart failure, or if, while on enbrel, you experience persistent fever, bruising, bleeding, or paleness. [ phil ] get back to the things that matter most. ask your rheumatologist if enbrel is right for you. [ doctor ] enbrel, the number one biolog medicine prescribed by rheumatologists. [ doctor ] enbrel, the number one biolog medicine sleep in my contacts. relax... air optix® night & day aqua contact lenses are approved for up to 30 days and nights of continuous wear,

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so it's okay to sleep in them. visit airoptix.com for a free 1-month trial. do you remember the jetblue pilot who had a breakdown during a flight and screamed about religion and terrorists? well, a judge found him not guilty by reason of insanity. but here's the twist. today, we were told that the breakdown was brought on by a lack of sleep. abc's jim avila has the report. >> reporter: jetblue captain clayton osbon looks anything but sleepy during his freak-out on board his flight from new york to las vegas. his eyes wide open as he runs

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through the cabin yelling about jesus and al qaeda, scaring his passengers and crew until taken down in the aisle. and held until his co-pilot landed the plane safely in lubbock, texas. >> he started to curse at me and started to say you better pray, iraq, and iran. i so say, you know, you know what i'm going to show you what iraq and iran is. and i took him on a chokehold. >> reporter: but captain osbon beat charges of interfering with a flight crew and today court transcripts obtained by abc news reveal the key testimony that freed him. a psychologist testified that all this was caused by a "brief psychotic disorder" caused by "sleep deprivation." there was no trial, the u.s. attorney's office did not dispute the diagnosis and the captain was found not guilty by reason of insanity by the judge and sent to a mental health facility in ft. worth, texas, for more treatment and perhaps some sleep. >> it is possible for sleep deprivation, especially in combination with jet lag to cause psychosis, but usually

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it's in those people who have a preexisting diagnosis of a psychiatric disorder. >> reporter: the abc news investigative report unit has reported on pilot fatigue. pilots sleeping in crash pads or bedding down inside crew lounges at airports in philadelphia and new york. but jetblue told us today that captain obson had the weekend off before his tuesday flight and on monday, flew only two trips before having another 17 hours off prior to the trouble onboard. and jetblue insists it complies with the new rules just instituted by the faa last december requiring a ten-hour rest period for pilots between flights and 30 consecutive hours off during the week. >> and jim joins us now. jim, let me get this straight, does this mean anybody who is sleep deprived is at risk of a breakdown? >> well, not really, we talked to specialists today, you heard the woman in our piece say this affects people who already have some kind of psychosis, and then

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the sleep deprivation brings it on, this extreme that we saw in this case. >> so it just exacerbates the existing condition? jim avila reporting on today's news. coming up here, a new study revealing the simplest thing you can do at the dinner table right now to start losing weight. to start losing weight. and win fifty thousand dollars. congratulations you are our one millionth customer. people don't like to miss out on money that should have been theirs. that's why at ally we have the raise your rate 2-year cd. you can get a one-time rate increase if our two-year rate goes up. if your bank makes you miss out, you need an ally. ally bank. no nonsense. just people sense. hey kev, how about a bike ride? you're not my dad ahh!! hey honey, back feels better, little dancing tonight, you and me? dr. scholl's pro inserts

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his morning starts with arthritis pain. and two pills. afternoon's overhaul starts with more pain. more pills. triple checking hydraulics. the evening brings more pain. so, back to more pills. almost done, when... hang on. stan's doctor recommended aleve. it can keep pain away all day with fewer pills than tylenol. this is rudy. who switched to aleve. and two pills for a day free of pain. ♪ and get the all day pain relief of aleve in liquid gels. and tonight, a new finding about the quickest and simplest way to start eating less.

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researchers at arizona state university gave one group of eaters a bagel with cream cheese. the other, a bagel cut up into four smaller pieces. and the result was unmistakable. the eaters given the bite-size pieces ate 25% less than the others. scientists say it's the big insight that all those tiny portions act as kind of an optical illusion tricking the brain into feeling full faster. and sometimes, it's just nice learning that geniuses have to work as hard as we do. it turns out ernest hemingway rewrote the last line of "a farewell to arms" by one count, 47 times, before he was satisfied. all of them published today. here is attempt number 7. "there is no end except death and birth only the beginning." here's attempt number 34. "the world breaks everyone.

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and those it does not break it kills." in the end, he settled on this, "after a while, i went out and left the hospital and walked back to the hotel in the rain." a legend at work. and here's a "what would you do" scenario. this was the scene at the jersey shore. the sky is darkening. a crack of lightning. people are scurrying from the boardwalk. but a 17-year-old girl is stuck on a chair lift ride overhead. and makes a gut-wrenching choice. she jumps 35 feet to the ground rather than risk lightning. >> it was literally right over us. lightning was surrounding us. there was a tornado in the distance. it vanished quickly. but it seemed very frightening. i either stay up here and get struck by lightning or a break an ankle. i'm like, i'm jumping. >> she landed on the beach below unharmed and said she's glad she followed her gut. and coming up here, could you live in a home the size of

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two parking spaces? meet the family who's going from living large to living very small. dicare and social securit, you've earned the right to know. ♪ ...so what does it mean for you and your family? [ female announcer ] you've earned the facts. ♪ washington may not like straight talk, but i do. [ female announcer ] and you've earned a say. get the facts and make your voice heard on medicare and social security at earnedasay.org. mine hurt more! mine stopped hurting faster... [ female announcer ] neosporin® plus pain relief starts relieving pain faster and kills more types of infectious bacteria. neosporin® plus pain relief. for a two dollar coupon, visit neosporin.com. because vitamin d3 helps bones absorb calcium, caltrate's double the d. it now has more than any other brand

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teeny apartments, the size of two parking spaces. he says it could solve a lot of housing problems in a lot of places. and we found some people who are already doing it and telling us how. here's abc amy robach. >> hi. >> hi. i'm amy. >> reporter: lessons in small space. we went to graham hill's high-end convertible apartment, just 434 square feet. it can go from a living room to two bedrooms to a dining room for ten. how many chairs did you fit in that one closet? >> ten. >> reporter: and the kitchen. there's more to it than meets the eye. this microwave is also a convection oven. need burners? take a look. pull them out here. a refrigerator in this drawer. a freezer down below it. up here, everything has multi functions and it's stackable. even this wall is magnatized for

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storing. and trash compost here. next we headed to abc producer lauren efron's apartment, just 300 square feet. the size of two parking spaces. 300 even? >> yes. 300 even and i share it with my boyfriend. >> reporter: 150 square feet for each of you? >> yeah. this is how i get into bed every night. climb the stairs. you'll see this is three feet of space. >> reporter: everything serves a dual purpose. so this table is multifunctional? >> yes. so this serves as a desk. this serves as an ironing board. this serves as an office. >> reporter: we know necessity breeds creativity, nowhere more evident than in genevieve's apartment. after dinner each night, she turns her shower into a dishwasher. do you think anybody can live like this? >> yes, absolutely. i mean, if you just tear down yourself, and say, look, this is what i absolutely need to survive. it's not that i'm living in the wilderness. i have a blender. i have a coffee pot.

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>> reporter: all you need to live in this concrete jungle. amy robach, abc news, new york. >> and we thank you so much for watching. we're always here at abcnews.com. and rememberer the ground-breaking series "new york med" begins at 10:00 eastern time tonight. "nightline" will be along later. of course, we'll see you right back here tomorrow night. until then, good night. heat is on tonight. it's fueling a pair of wildfires burning out of control. we're just minutes from a live report. >> local chefs prepare a rich delicacy supposed to be against the law. how restaurants are getting around a new ban on foie gras.

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>> and tonight affordable bay area housing if it works in new york can it work here, too? and a yoga instructor forced out of a good gig. how she lost her job in a phone filing of facebook. >> and it's happening right now in contra costa county. and there is a grass fire burning in bay point. we believe those large pieces of lumber you can see here that have caught fire in the middle of the field. >> and this fire broke out about 5:00, an houring arow, forcing closure of all westbound lanes of highway 4, just reopening minutes ago. >> 12 acres have burned, and no structures were threatened by this. no one was injured but you can see it burned up against highway 4 here in those westbound lanes. good evening, everyone, i'm carolyn johnson. >> we'll keep you updated on that fire,